Trimethoxysilylpropanethiol

Modify Date: 2025-08-20 09:47:24

Trimethoxysilylpropanethiol Structure
Trimethoxysilylpropanethiol structure
 Common Name Trimethoxysilylpropanethiol
CAS Number 4420-74-0 Molecular Weight 196.340
Density 1.0±0.1 g/cm3 Boiling Point 198.0±0.0 °C at 760 mmHg
Molecular Formula C6H16O3SSi Melting Point <-50ºC
MSDS Chinese USA Flash Point 48.9±0.0 °C
Symbol GHS07 GHS09
GHS07, GHS09		 Signal Word Warning

 Names

Name Trimethoxysilylpropanethiol
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.0±0.1 g/cm3
Boiling Point 198.0±0.0 °C at 760 mmHg
Melting Point <-50ºC
Molecular Formula C6H16O3SSi
Molecular Weight 196.340
Flash Point 48.9±0.0 °C
Exact Mass 196.058945
PSA 66.49000
LogP 1.09
Vapour Pressure 0.5±0.3 mmHg at 25°C
Index of Refraction 1.439
Storage condition 2-8°C
Stability Stable, but moisture sensitive - may decomposes on exposure to moist air. Incompatible with water, alcohols, strong oxidizing agents, strong acids.
Water Solubility decomposes

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
TZ7800000
CHEMICAL NAME :
Propanethiol, trimethoxysilyl-
CAS REGISTRY NUMBER :
4420-74-0
LAST UPDATED :
199712
DATA ITEMS CITED :
8
MOLECULAR FORMULA :
C6-H16-O3-S-Si
MOLECULAR WEIGHT :
196.37
WISWESSER LINE NOTATION :
SH3-SI-O1&O1&O1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
Open irritation test
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rabbit
REFERENCE :
UCDS** Union Carbide Data Sheet. (Union Carbide Corp., 39 Old Ridgebury Rd., Danbury, CT 06817) Volume(issue)/page/year: 4/2/1971 ** ACUTE TOXICITY DATA **
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
2830 uL/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
AIHAAP American Industrial Hygiene Association Journal. (AIHA, 475 Wolf Ledges Pkwy., Akron, OH 44311) V.19- 1958- Volume(issue)/page/year: 30,470,1969
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
633 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
DANKAS Doklady Akademii Nauk SSSR. Proceedings of the Academy of Sciences of the USSR. For English translation, see DBIOAM and DKBSAS. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1933- Volume(issue)/page/year: 229,1011,1976
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
5660 uL/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
AIHAAP American Industrial Hygiene Association Journal. (AIHA, 475 Wolf Ledges Pkwy., Akron, OH 44311) V.19- 1958- Volume(issue)/page/year: 30,470,1969 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X1504 No. of Facilities: 27 (estimated) No. of Industries: 1 No. of Occupations: 1 No. of Employees: 81 (estimated) No. of Female Employees: 27 (estimated)

 Safety Information

Symbol GHS07 GHS09
GHS07, GHS09
Signal Word Warning
Hazard Statements H302-H317-H411
Precautionary Statements P273-P280
Personal Protective Equipment Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
Hazard Codes Xn:Harmful
Risk Phrases R22;R43;R51/53
Safety Phrases S24/25-S36/37-S61-S57-S37-S24
RIDADR UN 3082 9/PG 3
WGK Germany 2
RTECS TZ7800000
Packaging Group III
Hazard Class 9
HS Code 29310095

 Synthetic Route

(3-Bromopropyl)(trimethoxy)silane structure

(3-Bromopropyl)...

CAS#:51826-90-5

~90%

Trimethoxysilylpropanethiol Structure

Trimethoxysilyl...

CAS#:4420-74-0

Literature: Shin-Etsu Chemical Co., Ltd. Patent: US5840952 A1, 1998 ;
3-Chloropropyltrimethoxysilane structure

3-Chloropropylt...

CAS#:2530-87-2

~%

Trimethoxysilylpropanethiol Structure

Trimethoxysilyl...

CAS#:4420-74-0

Literature: Bittell,J.E.; Speier,J.L. Journal of Organic Chemistry, 1978 , vol. 43, p. 1687 - 1689
S-(3-trimethoxysilylpropyl) ethanethioate structure

S-(3-trimethoxy...

CAS#:64456-54-8

~%

Trimethoxysilylpropanethiol Structure

Trimethoxysilyl...

CAS#:4420-74-0

Literature: Voronkov,M.G. et al. Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1977 , vol. 26, p. 1710 - 1713 Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1977 , vol. 26, p. 1849 - 1851
Allyltrimethoxysilane structure

Allyltrimethoxy...

CAS#:2551-83-9

~%

Trimethoxysilylpropanethiol Structure

Trimethoxysilyl...

CAS#:4420-74-0

3,3,12,12-tetramethoxy-2,13-dioxa-7,8-dithia-3,12-disilatetradecane structure

3,3,12,12-tetra...

CAS#:35112-74-4

trimethoxy-[3-(3-trimethoxysilylpropylsulfanyl)propyl]silane structure

trimethoxy-[3-(...

CAS#:29055-11-6

Literature: Maroshina, M.Yu.; Pozhidaev, Yu.N.; Palam, B.; Vlasova, N.N.; Voronkov, M.G. Doklady Chemistry, 1994 , vol. 339, # 1-3 p. 205 - 207 Dokl. Akad. Nauk SSSR Ser. Khim., 1994 , vol. 339, # 1 p. 62 - 64
Allyltrimethoxysilane structure

Allyltrimethoxy...

CAS#:2551-83-9

~%

Trimethoxysilylpropanethiol Structure

Trimethoxysilyl...

CAS#:4420-74-0

Literature: Ermakov, A. I.; Kirichenko, E. A.; Makrushin, N. A.; Vlasova, N. N.; Maroshina, M. Yu.; Voronkov, M. G. Journal of Structural Chemistry, 1987 , vol. 28, p. 46 - 51 Zhurnal Strukturnoi Khimii, 1987 , vol. 28, # 1 p. 56 - 62

 Customs

HS Code 2931900090
Summary 2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0%

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 Synonyms

z6062
mercaptopropyl trimethoxysilane
(3-Mercaptopropyl)trimethoxysilane
3-(Trimethoxysilyl)propanethiol
MFCD00004901
kbe803
gf70
kbm803
(3-Mercaptopropyl)-Trimethoxysilane
CM8500
EINECS 224-588-5
3-(trimethoxysilyl)propane-1-thiol
az6129
3-(Trimethoxysilyl)-1-propanethiol
3-Mercaptopropyltrimethoxysilane
m8500
A 189
1-Propanethiol, 3-(trimethoxysilyl)-
(γ-Mercaptopropyl)trimethoxysilane
sh6062
γ-mercaptopropyltrimethoxysilane
3-mercaptopropyl trimethoxysilane
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